The new teacher referred to________to our school yesterday

Normally， a forest fire and the damage _______ causes can be very extensive， especially when you consider the financial and physical losses．

We’ll stay at home if it _______ tomorrow.

You can’t imagine what difficulty we had_______ home in the snowstorm

With Shanghai World Expo drawing near, volunteers are making use of every minute to ____ their foreign language because language volunteers must pass a written test and an interview.